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Engine-Codes – Generic – P16AE

P16AE Code - Glow Plug Control Module Temperature Sensor Circuit High Voltage

Quick Answer

The diagnostic trouble code P16AE indicates a problem with the glow plug control module temperature sensor circuit in a vehicle. Common causes include Faulty glow plug control module temperature sensor, Wiring or connection issues in the temperature sensor circuit, Corrosion or damage to the sensor or its wiring. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P16AE indicates Glow Plug Control Module Temperature Sensor Circuit High Voltage.
Common causes
Common causes include Faulty glow plug control module temperature sensor, Wiring or connection issues in the temperature sensor circuit, Corrosion or damage to the sensor or its wiring.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P16AE Description

The diagnostic trouble code P16AE indicates a problem with the glow plug control module temperature sensor circuit in a vehicle. Glow plugs are essential components in diesel engines, as they help to heat the combustion chamber for easier cold starts. The glow plug control module is responsible for monitoring and controlling the temperature of the glow plugs to ensure optimal performance.

OBDII Code P16AE - Glow Plug Control Module Temperature Sensor Circuit High Voltage
P16AE Code - Glow Plug Control Module Temperature Sensor Circuit High Voltage

Common Causes of P16AE

  1. Faulty glow plug control module temperature sensor.
  2. Wiring or connection issues in the temperature sensor circuit.
  3. Corrosion or damage to the sensor or its wiring.
  4. Engine overheating causing false high temperature readings.
  5. Electrical issues in the vehicle's electrical system.

Symptoms of P16AE

  1. Difficulties starting the engine, especially in cold weather.
  2. Rough idling or misfiring of the engine.
  3. Decreased fuel efficiency.
  4. Increased emissions.
  5. Illumination of the check engine light on the dashboard.

How to Fix P16AE

  1. Begin by diagnosing the issue using a diagnostic scan tool to verify the P16AE code and pinpoint the exact cause.
  2. Inspect the glow plug control module temperature sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the connections and wiring in the temperature sensor circuit for any loose or damaged components. Repair or replace as needed.
  4. Clear the diagnostic trouble codes from the vehicle's computer using the scan tool and test the vehicle to ensure the issue has been resolved.
  5. If the problem persists, seek professional help from a mechanic or dealership for further diagnosis and repair.

Cost to Fix P16AE

The typical repair costs for addressing a glow plug control module temperature sensor circuit high voltage issue can range from $150 to $300, including parts and labor. However, it's important to note that these costs can vary depending on the specific make and model of the vehicle, the location of the repair shop, and the extent of the repairs needed. Additionally, diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. It's recommended to consult with local repair shops for a more accurate estimate based on your individual circumstances.

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Code P16AE Information for Specific Makes

  • P16AE Buick — Glow Plug Control Module Temperature Sensor Circuit High Voltage
  • P16AE Cadillac — Glow Plug Control Module Temperature Sensor Circuit High Voltage
  • P16AE Chevrolet — Glow Plug Control Module Temperature Sensor Circuit High Voltage
  • P16AE GMC — Glow Plug Control Module Temperature Sensor Circuit High Voltage
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P16AE Code

1. What are the common symptoms of OBDII code P16AE (Glow Plug Control Module Temperature Sensor Circuit High Voltage)?

- Common symptoms include poor engine performance, rough idling, reduced fuel efficiency, and an illuminated Check Engine Light.

2. What are the possible causes of OBDII code P16AE?

- The code P16AE can be caused by a faulty glow plug control module temperature sensor, damaged wiring or connectors in the circuit, or a malfunctioning glow plug control module.

3. How can I diagnose the cause of OBDII code P16AE?

- To diagnose the cause of P16AE, you can use a scan tool to read the code and perform further testing on the glow plug control module temperature sensor, wiring, and connectors for any issues.

4. Can I drive my vehicle with OBDII code P16AE?

- It is not recommended to drive your vehicle with code P16AE, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.

5. How can I repair OBDII code P16AE?

- Repairing code P16AE involves inspecting and potentially replacing the glow plug control module temperature sensor, repairing any damaged wiring or connectors, or replacing the glow plug control module if necessary.

6. Can a DIY enthusiast fix OBDII code P16AE?

- Depending on your experience and tools available, a DIY enthusiast may be able to address code P16AE by following repair guides and being cautious when dealing with electrical components.

7. Will clearing the OBDII code P16AE make it go away permanently?

- Clearing the code P16AE may temporarily turn off the Check Engine Light, but if the underlying issue is not fixed, the code is likely to reappear once the problem is detected again.

8. How much does it cost to repair OBDII code P16AE at a mechanic?

- The cost of repairing code P16AE can vary depending on the specific cause, labor rates, and parts needed. It is advisable to get quotes from different mechanics for an accurate estimate.

9. Is OBDII code P16AE a serious issue?

- While code P16AE may not cause immediate breakdown, ignoring the issue can lead to poor engine performance and potential long-term damage. It is important to address the problem promptly.

10. Can extreme weather conditions affect OBDII code P16AE?

- Extreme weather conditions, especially cold temperatures, can exacerbate issues related to glow plug control modules and sensors, potentially triggering code P16AE.

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